A method of scrubbing flue gases of two or more diesel engines and a scrubber for scrubbing flue gases of two or more diesel engines. The scrubber (1) comprises scrubbing means (3) for scrubbing the flue gases, and conduits (4) for conveying the flue gases to said scrubbing means (3) to be scrubbed in the same scrubbing process. The different flue gas flows are arranged to be conveyed in separate conduits (4) all the way to the scrubbing means (3).